13666802 has 4 divisors (see below), whose sum is σ = 20500206. Its totient is φ = 6833400.

The previous prime is 13666787. The next prime is 13666813. The reversal of 13666802 is 20866631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13608721 + 58081 = 3689^2 + 241^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3416699 + ... + 3416702.

Almost surely, 2^13666802 is an apocalyptic number.

13666802 is a deficient number, since it is larger than the sum of its proper divisors (6833404).

13666802 is an equidigital number, since it uses as much as digits as its factorization.

13666802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6833403.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 13666802 is about 3696.8638059847. The cubic root of 13666802 is about 239.0868191786.

The spelling of 13666802 in words is "thirteen million, six hundred sixty-six thousand, eight hundred two".